<template>
  <div class="app-container">
    <!-- 顶部Header区域 -->
    <mt-header fixed title="黑马程序员-Vue项目">
      <span slot="left" @click="goBack" v-show="flag">
        <mt-button icon="back">返回</mt-button>
      </span>
    </mt-header>

    <!-- 中间路由router-view区域 -->
    <transition>
      <router-view></router-view>
    </transition>

    <!-- 底部Tabbar区域 -->
    <nav class="mui-bar mui-bar-tab">
      <router-link class="mui-tab-item-ll" to="/home">
        <span class="mui-icon mui-icon-home"></span>
        <span class="mui-tab-label">首页</span>
      </router-link>
      <router-link class="mui-tab-item-ll" to="/member">
        <span class="mui-icon mui-icon-contact"></span>
        <span class="mui-tab-label">会员</span>
      </router-link>
      <router-link class="mui-tab-item-ll" to="/shopcar">
        <span class="mui-icon mui-icon-extra mui-icon-extra-cart">
          <span class="mui-badge" id="badge">{{$store.getters.getAllCount}}</span>
        </span>
        <span class="mui-tab-label">购物车</span>
      </router-link>
      <router-link class="mui-tab-item-ll" to="/search">
        <span class="mui-icon mui-icon-search"></span>
        <span class="mui-tab-label">搜索</span>
      </router-link>
    </nav>
  </div>
</template>

<script>
export default {
  data() {
    return {
      flag: false
    };
  },
  created() {
    this.flag = this.$route.path === "/home" ? false : true;
  },
  methods: {
    goBack() {
      this.$router.go(-1);
    }
  },
  watch: {
    "$route.path": function(newValue,oldValue) {
      if (newValue === "/home") {
        this.flag = false;
      } else {
        this.flag = true;
      }
    }
  }
};
</script>

<style scoped>
/* #app {
  padding-top: 40px;
  font-family: Avenir, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-align: center;
  color: #2c3e50;
} */
.mint-header {
  z-index: 99;
}
.app-container {
  padding-top: 40px;
  padding-bottom: 50px;
  /* 让顶部和底部不滑动 */
  overflow-x: hidden;
  
}
.v-erter {
  opacity: 0;
  transform: translateX(100%);
}
.v-leave-to {
  opacity: 0;
  transform: translateX(-100%);
  position: absolute;
}
.v-enter-active,
.v-leave-active {
  transition: all 0.5s ease;
}
.mui-bar-tab .mui-tab-item-ll {
    display: table-cell;
    overflow: hidden;
    width: 1%;
    height: 50px;
    text-align: center;
    vertical-align: middle;
    white-space: nowrap;
    text-overflow: ellipsis;
    color: #929292;
}
.mui-bar-tab .mui-tab-item-ll .mui-icon {
    top: 3px;
    width: 24px;
    height: 24px;
    padding-top: 0;
    padding-bottom: 0;
}
.mui-bar-tab .mui-tab-item-ll .mui-icon~.mui-tab-label {
    font-size: 11px;
    display: block;
    overflow: hidden;
    text-overflow: ellipsis;
}
.router-link-exact-active{
  color: blue !important;
}
</style>
